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Alleviating the Work Function of Vein‐Like CoXP by Cr Doping for Enhanced Seawater Electrolysis
For mass production of hydrogen fuel by electrochemical water splitting, seawater is preferred because of its abundant reserves on Earth. However, the current seawater electrolysis technology is seriously hindered by the low selectivity and poor stability of oxygen evolution reaction (OER) at anode...
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Published in: | Advanced functional materials 2023-07, Vol.33 (30), p.n/a |
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creator | Song, Yanyan Sun, Mingzi Zhang, Shucong Zhang, Xiaoyan Yi, Peng Liu, Junzhe Huang, Bolong Huang, Minghua Zhang, Lixue |
description | For mass production of hydrogen fuel by electrochemical water splitting, seawater is preferred because of its abundant reserves on Earth. However, the current seawater electrolysis technology is seriously hindered by the low selectivity and poor stability of oxygen evolution reaction (OER) at anode due to undesirable chloride electrochemistry and severe corrosion in practical application. Herein, based on the “work function optimization” concept, vein‐like Cr‐doping CoxP is rationally designed as a highly‐efficient OER electrocatalyst for direct seawater electrolysis, achieving current densities of 20 and 100 mA cm–2 at overpotentials of 268 and 325 mV, respectively, together with high OER selectivity and long‐term stability. Experimental data and theoretical calculations reveal that the regulation of the electronic structure of CoxP induced by Cr doping strongly alleviates the work function of CoxP, which not only accelerates the electron transfer between the catalyst surface and the absorbates but also lowers the energy barriers of water dissociation and rate‐determining step for both OER and hydrogen evolution reaction (HER). Moreover, Cr doping also protects the Co sites with robust valence states to maintain their high performance during the OER process, providing a new avenue to design non‐noble metal‐based catalysts for hydrogen generation from seawater electrolysis.
The vein‐like Cr‐CoXP catalyst with optimized work function is developed by Cr doping. The lowered work function in Cr‐CoXP makes faster electron transfer and lower energy barrier, enhancing the electrocatalytic performance of seawater splitting. |
doi_str_mv | 10.1002/adfm.202214081 |
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The vein‐like Cr‐CoXP catalyst with optimized work function is developed by Cr doping. The lowered work function in Cr‐CoXP makes faster electron transfer and lower energy barrier, enhancing the electrocatalytic performance of seawater splitting.</description><identifier>ISSN: 1616-301X</identifier><identifier>EISSN: 1616-3028</identifier><identifier>DOI: 10.1002/adfm.202214081</identifier><language>eng</language><publisher>Hoboken: Wiley Subscription Services, Inc</publisher><subject>Catalysts ; Cr doping ; Doping ; Electrocatalysts ; Electrochemistry ; Electrolysis ; Electron transfer ; Electronic structure ; Energy of dissociation ; Hydrogen evolution reactions ; Hydrogen fuels ; Hydrogen production ; Mass production ; Materials science ; Noble metals ; Optimization ; Oxygen evolution reactions ; Seawater ; seawater splitting ; Stability ; transition metal phosphides ; Valence ; Water splitting ; work function ; Work functions</subject><ispartof>Advanced functional materials, 2023-07, Vol.33 (30), p.n/a</ispartof><rights>2023 Wiley‐VCH GmbH</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><orcidid>0000-0003-3430-4988</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,780,784,27924,27925</link.rule.ids></links><search><creatorcontrib>Song, Yanyan</creatorcontrib><creatorcontrib>Sun, Mingzi</creatorcontrib><creatorcontrib>Zhang, Shucong</creatorcontrib><creatorcontrib>Zhang, Xiaoyan</creatorcontrib><creatorcontrib>Yi, Peng</creatorcontrib><creatorcontrib>Liu, Junzhe</creatorcontrib><creatorcontrib>Huang, Bolong</creatorcontrib><creatorcontrib>Huang, Minghua</creatorcontrib><creatorcontrib>Zhang, Lixue</creatorcontrib><title>Alleviating the Work Function of Vein‐Like CoXP by Cr Doping for Enhanced Seawater Electrolysis</title><title>Advanced functional materials</title><description>For mass production of hydrogen fuel by electrochemical water splitting, seawater is preferred because of its abundant reserves on Earth. However, the current seawater electrolysis technology is seriously hindered by the low selectivity and poor stability of oxygen evolution reaction (OER) at anode due to undesirable chloride electrochemistry and severe corrosion in practical application. Herein, based on the “work function optimization” concept, vein‐like Cr‐doping CoxP is rationally designed as a highly‐efficient OER electrocatalyst for direct seawater electrolysis, achieving current densities of 20 and 100 mA cm–2 at overpotentials of 268 and 325 mV, respectively, together with high OER selectivity and long‐term stability. Experimental data and theoretical calculations reveal that the regulation of the electronic structure of CoxP induced by Cr doping strongly alleviates the work function of CoxP, which not only accelerates the electron transfer between the catalyst surface and the absorbates but also lowers the energy barriers of water dissociation and rate‐determining step for both OER and hydrogen evolution reaction (HER). Moreover, Cr doping also protects the Co sites with robust valence states to maintain their high performance during the OER process, providing a new avenue to design non‐noble metal‐based catalysts for hydrogen generation from seawater electrolysis.
The vein‐like Cr‐CoXP catalyst with optimized work function is developed by Cr doping. The lowered work function in Cr‐CoXP makes faster electron transfer and lower energy barrier, enhancing the electrocatalytic performance of seawater splitting.</description><subject>Catalysts</subject><subject>Cr doping</subject><subject>Doping</subject><subject>Electrocatalysts</subject><subject>Electrochemistry</subject><subject>Electrolysis</subject><subject>Electron transfer</subject><subject>Electronic structure</subject><subject>Energy of dissociation</subject><subject>Hydrogen evolution reactions</subject><subject>Hydrogen fuels</subject><subject>Hydrogen production</subject><subject>Mass production</subject><subject>Materials science</subject><subject>Noble metals</subject><subject>Optimization</subject><subject>Oxygen evolution reactions</subject><subject>Seawater</subject><subject>seawater splitting</subject><subject>Stability</subject><subject>transition metal phosphides</subject><subject>Valence</subject><subject>Water splitting</subject><subject>work function</subject><subject>Work functions</subject><issn>1616-301X</issn><issn>1616-3028</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2023</creationdate><recordtype>article</recordtype><recordid>eNo9kMtOwzAQRS0EEqWwZW2JdYofaWwvq_QBUhFIvLqzbMehbtM4OClVdnwC38iXkKqoq5m5OjMjHQCuMRpghMityvLNgCBCcIw4PgE9nOAkoojw02OPF-fgoq5XCGHGaNwDalQU9supxpUfsFla-O7DGk63pWmcL6HP4Zt15e_3z9ytLUz94gnqFqYBjn21X8l9gJNyqUpjM_hs1U41tksKa5rgi7Z29SU4y1VR26v_2gev08lLehfNH2f36WgeVYRSHCWKMZQJzaywOtNcc0Wo4VTboYipYogJnTPDhc6MHubGiIyKvGO4jeNEM9oHN4e7VfCfW1s3cuW3oexeSsJjTASnnHSUOFA7V9hWVsFtVGglRnLvUO4dyqNDORpPH44T_QNTHWkq</recordid><startdate>20230725</startdate><enddate>20230725</enddate><creator>Song, Yanyan</creator><creator>Sun, Mingzi</creator><creator>Zhang, Shucong</creator><creator>Zhang, Xiaoyan</creator><creator>Yi, Peng</creator><creator>Liu, Junzhe</creator><creator>Huang, Bolong</creator><creator>Huang, Minghua</creator><creator>Zhang, Lixue</creator><general>Wiley Subscription Services, Inc</general><scope>7SP</scope><scope>7SR</scope><scope>7U5</scope><scope>8BQ</scope><scope>8FD</scope><scope>JG9</scope><scope>L7M</scope><orcidid>https://orcid.org/0000-0003-3430-4988</orcidid></search><sort><creationdate>20230725</creationdate><title>Alleviating the Work Function of Vein‐Like CoXP by Cr Doping for Enhanced Seawater Electrolysis</title><author>Song, Yanyan ; Sun, Mingzi ; Zhang, Shucong ; Zhang, Xiaoyan ; Yi, Peng ; Liu, Junzhe ; Huang, Bolong ; Huang, Minghua ; Zhang, Lixue</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-p2331-6a770d9b7e9ebdb8b8a23c83be5943a7079bf7c89bdcb5fcc9d39fa238e446b73</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2023</creationdate><topic>Catalysts</topic><topic>Cr doping</topic><topic>Doping</topic><topic>Electrocatalysts</topic><topic>Electrochemistry</topic><topic>Electrolysis</topic><topic>Electron transfer</topic><topic>Electronic structure</topic><topic>Energy of dissociation</topic><topic>Hydrogen evolution reactions</topic><topic>Hydrogen fuels</topic><topic>Hydrogen production</topic><topic>Mass production</topic><topic>Materials science</topic><topic>Noble metals</topic><topic>Optimization</topic><topic>Oxygen evolution reactions</topic><topic>Seawater</topic><topic>seawater splitting</topic><topic>Stability</topic><topic>transition metal phosphides</topic><topic>Valence</topic><topic>Water splitting</topic><topic>work function</topic><topic>Work functions</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Song, Yanyan</creatorcontrib><creatorcontrib>Sun, Mingzi</creatorcontrib><creatorcontrib>Zhang, Shucong</creatorcontrib><creatorcontrib>Zhang, Xiaoyan</creatorcontrib><creatorcontrib>Yi, Peng</creatorcontrib><creatorcontrib>Liu, Junzhe</creatorcontrib><creatorcontrib>Huang, Bolong</creatorcontrib><creatorcontrib>Huang, Minghua</creatorcontrib><creatorcontrib>Zhang, Lixue</creatorcontrib><collection>Electronics & Communications Abstracts</collection><collection>Engineered Materials Abstracts</collection><collection>Solid State and Superconductivity Abstracts</collection><collection>METADEX</collection><collection>Technology Research Database</collection><collection>Materials Research Database</collection><collection>Advanced Technologies Database with Aerospace</collection><jtitle>Advanced functional materials</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Song, Yanyan</au><au>Sun, Mingzi</au><au>Zhang, Shucong</au><au>Zhang, Xiaoyan</au><au>Yi, Peng</au><au>Liu, Junzhe</au><au>Huang, Bolong</au><au>Huang, Minghua</au><au>Zhang, Lixue</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Alleviating the Work Function of Vein‐Like CoXP by Cr Doping for Enhanced Seawater Electrolysis</atitle><jtitle>Advanced functional materials</jtitle><date>2023-07-25</date><risdate>2023</risdate><volume>33</volume><issue>30</issue><epage>n/a</epage><issn>1616-301X</issn><eissn>1616-3028</eissn><abstract>For mass production of hydrogen fuel by electrochemical water splitting, seawater is preferred because of its abundant reserves on Earth. However, the current seawater electrolysis technology is seriously hindered by the low selectivity and poor stability of oxygen evolution reaction (OER) at anode due to undesirable chloride electrochemistry and severe corrosion in practical application. Herein, based on the “work function optimization” concept, vein‐like Cr‐doping CoxP is rationally designed as a highly‐efficient OER electrocatalyst for direct seawater electrolysis, achieving current densities of 20 and 100 mA cm–2 at overpotentials of 268 and 325 mV, respectively, together with high OER selectivity and long‐term stability. Experimental data and theoretical calculations reveal that the regulation of the electronic structure of CoxP induced by Cr doping strongly alleviates the work function of CoxP, which not only accelerates the electron transfer between the catalyst surface and the absorbates but also lowers the energy barriers of water dissociation and rate‐determining step for both OER and hydrogen evolution reaction (HER). Moreover, Cr doping also protects the Co sites with robust valence states to maintain their high performance during the OER process, providing a new avenue to design non‐noble metal‐based catalysts for hydrogen generation from seawater electrolysis.
The vein‐like Cr‐CoXP catalyst with optimized work function is developed by Cr doping. The lowered work function in Cr‐CoXP makes faster electron transfer and lower energy barrier, enhancing the electrocatalytic performance of seawater splitting.</abstract><cop>Hoboken</cop><pub>Wiley Subscription Services, Inc</pub><doi>10.1002/adfm.202214081</doi><tpages>10</tpages><orcidid>https://orcid.org/0000-0003-3430-4988</orcidid></addata></record> |
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subjects | Catalysts Cr doping Doping Electrocatalysts Electrochemistry Electrolysis Electron transfer Electronic structure Energy of dissociation Hydrogen evolution reactions Hydrogen fuels Hydrogen production Mass production Materials science Noble metals Optimization Oxygen evolution reactions Seawater seawater splitting Stability transition metal phosphides Valence Water splitting work function Work functions |
title | Alleviating the Work Function of Vein‐Like CoXP by Cr Doping for Enhanced Seawater Electrolysis |
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